9 Scientific and teaching apparatus and instruments, particularly spectrometers, analysing apparatus in the nature of residual gas analyzers, mass spectrometers, time of flight mass spectrometers, ion mobility spectrometer; Inductively coupled plasma mass spectrometers; Electron-ionization spectrometers; Ion sources for scientific measuring and teaching apparatus and instruments, namely, spectrometers, analysing apparatus in the nature of residual gas analyzers, mass spectrometers, time of flight mass spectrometers, ion mobility spectrometer, inductively coupled plasma mass spectrometers, electron-ionization spectrometers; Structural components and parts for all the aforesaid goods; Handling and control devices for scientific measuring and teaching apparatus and instruments, namely, spectrometers, analysing apparatus in the nature of residual gas analyzers, mass spectrometers, time of flight mass spectrometers, ion mobility spectrometer, inductively coupled plasma mass spectrometers, electron-ionization spectrometers; Software for application, handling and control for scientific measuring and teaching apparatus and instruments, particularly software for the input, processing, viewing and analysis of measurement data